Update 41 is really nice, but there there seems to be a few bugs that affect gameplay. Sorry to bother you with so many bugs, John, have your tea first. :P

Am using 1.8-Forge11.14.3.1450 with Liteloader 1.8 (for Voxelmap). I'll try without Liteloader and just Forge; I'll see if it persists then. EDIT: Some issues still persist. See below.

I don't hate the Update, I'm actually very satisfied with the Update, it brings very welcome features and fixes many of U40's features! ( For instance, the Tardis flight panel also acts like a scanner, which was requested for a while now).  On a happier note, Daleks spawn again and drop Dalekenium! I haven't seen the other DM mobs though, but I'm sure the Team knows the spawn code issue already.

The bugs reports are formatted from most serious bugs (top of page) to less serious (further down the page)

Dalek Mod/Forge Bug I (Not sure which)(Slightly game-breaking)

When it happens : After using the new Tardis flight GUI

Problem: Sometimes doesn't allow you to right click on items (e.g. chest) with tools other than an empty hand

Further information: After going to the title screen and going back into your world, the problem persists. It's being slightly annoying as I can't play survival properly. Oh well.

Error message? No

Dalek Mod/Forge Bug II (Not sure which)( Also affects Tardis alot)

When it happens : In-game

Problem: Sometimes doesn't allow you to right click on Demat lever to dematerialise.

Further information: After going to the title screen and going back into your world, the problem persists.

Error message? No

Dalek Mod/Forge Bug III (Not sure which)

When it happens : When you place down either a TT Capsule, Vanilla Minecraft Tardis and enter the interior

Problem: Block ID mismatches. E.g. Skaro sand replaces quartz blocks in Hell Bent Tardis interior.

Further information: This happens with all the new interiors. E.g. In the Copper/11th Doctor's First Tardis interior, there are Eighth Doctor Statues everywhere! Really creepy as some have the heads looking through a glass block. >_<

Error message? No

Tardis Flight 1-Third Person bug

When it happens : After exiting the new Tardis flight GUI

Problem: The feature turns your player's view into third person or makes you fall to the bottom level of a Tardis interior

Further information:

Error message? No

Tardis Flight II-Unable to Exit

When it happens : After exiting the new Tardis flight GUI

Problem: Doesn't allow you to exit the Tardis. EDIT: I've tried using Forge 1.8 only and still happens, although less frequently.

Further information: After going to the title screen and going back into your world, the problem persists

Error message? No

Tardis General Bug I

When it happens : When summoning one's Tardis in a singleplayer survival world.

Problem: Doesn't summon, as if it isn't synced. (Although it was able to summon a few minutes ago)

Further information: None

Error message? No "Tardis no found, probably nicked" error message either. (Athough that was quite amusing in the 1.7.10 version)

Dimension refreshing Bug I

When it happens : After exiting any Tardis on another DM dimension. On Skaro, I spawned Bessie and a bunch of Daleks.

Problem: I went into the Tardis to get something and after coming back out, they all disappeared, except for the few naturally spawned ones.

Further information: Load times after exiting Tardis are alot longer (the one with the "Downloading Terrain" screen). Like in the 1.6.4 Tardis.

Error message? No

Dimension refreshing Bug II

When it happens : After exiting any Tardis on another DM dimension. (On Skaro) There are two Daleks in the vicinity of the Tardis

Problem: I went into the Tardis to get something and after coming back out, the world refreshes and the type of Dalek outside changed. So two 60s Daleks turned into two Special Weapons Daleks!

Further information: None

Error message? No

Tardis Overworld/ Coordinate Travel

When it happens : After travelling to the Overworld from another dimension.

Problem: The Tardis lands in the wrong X,Y and Z coordinate to its position in its overworld. It is usually about 10-200 blocks away.

Further information: This also happens occasionally when using Coordinate travel

Error message? No

 Darnit Paul McGann! Lol

And dang. Those are some serious issues. Somehow, I haven't run into any of them.

I hope you can figure something out

.

What version of forge are you using?

EDIT: I am having the third person bug

 I'm using 1.8-Forge11.14.3.1450 with Liteloader 1.8 as I want to use Voxelmap. I'll try just Forge and see if it happens again.

EDIT: Tried with just Forge. Still isn't working. Oh well.

I wish you luck. I'm using version 1.8 - 11.14.4.1563. 

Thanks!

Update 23/12/15: Added in bugs found by other users and Skaro refreshing bug. Redid formatting, to improve ease of reading. Moved most serious bugs to the top. Less serious ones are further down the page.

Man, you really know how to format a post. I applaud you

 Thanks! You do amazingly detailed and well written suggestions too! We should play on the public server one day. :)